Excelvan New Luminous Noctilucent Glow in the Dark PLA 3D Printer Filament for Print RepRap MarkerBot- 1kg Spool (2.2 lbs) - Dimensional Accuracy +/- 0.02mm - 5 Colors Available (1.75mm, Purple) Specification: Tolerance: +/-0.02mm / Print temperature: 190-220&#176;C (374-428&#176;F) / Bubble: No bubble 100 percent / Net weight: 1kg/spool / Gross weight: 1.3kg/spool Diameter Tolerances: Our filament quality is very good with tolerances only: +/-0.02mm. Our PLA filaments DO NOT have air bubbles. Material: PLA allows higher print speed, more accurate placement of material with proper cooling (it does not shrink as much) and also thinner build heights because of less resistance from the plastic coming out the nozzle, where abs even at high temps (252C) is still sticky and has high viscosity. Compatible with all FDM 3D printer such as Makerbot, Mendel, Prusa, Huxley, BFB series, RepRap, Rapman, Solidoodle etc.